Ok so I've been searching for advice and u set standing to determine what material melds to place into my armour

As warrior I know all accessories get strength

But the armour I don't know , and on inspecting other players, I've seen everything from skill speed , accuracy, det and crit hit, at this moment I have det in most pieces but think I need to swap this out for crit
However I'd prefer to know what's best or atleast understand what and how it works to make an informed choice

Help